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lefty7283

NGC 6229 - Globular Cluster in Hercules

  • 3 sessions
  • 211 images
  • 4.31 hours

Details

Put off on processing this for a while because heavy light pollution broadband sucks :-(

Captured on November 3rd and 4th, 2023 from, my bortle 8 apartment balcony.

**Places where I host my other images:**

 [Instagram](https://www.instagram.com/leftysastrophotography/) | [Flickr](https://www.flickr.com/people/leftysastrophotography/) 

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**[Equipment:](https://i.imgur.com/ejpKkwU.jpg)**
 

* TPO 6" F/4 Imaging Newtonian

* Orion Sirius EQ-G

* ZWO ASI1600MM-Pro

* Skywatcher Quattro Coma Corrector

* ZWO EFW 8x1.25"/31mm

* Astronomik LRGB+CLS Filters- 31mm

* Astrodon 31mm Ha 5nm, Oiii 3nm, Sii 5nm

* Agena 50mm Deluxe Straight-Through Guide Scope

* ZWO ASI-120mc for guiding

* Moonlite Autofocuser

**Acquisition:** 3 hours 42 minutes (Camera at half Unity Gain, -15°C)

* L- 96x60"

* R - 28x90"

* G - 28x90"

* B - 28x90"

* Darks- 30

* Flats- 30 per filter

**Capture Software:**

* Captured using [N.I.N.A.](https://nighttime-imaging.eu) and PHD2 for guiding and dithering.

**PixInsight Processing**

* BatchPreProcessing

* StarAlignment

* [Blink](https://youtu.be/sJeuWZNWImE?t=40)

* ImageIntegration

**Luminance Linear:**

* DynamicCrop

* DynamicBackgroundExtraction

* NoiseXterminator

* ArcsinhStretch+HistogramTransformation to bring nonlinear

**RGB Linear:**

* DynamicCrop

* DynamicBackgroundExtraction

* ChannelCombination

* SpectrophotometricColorCalibration

* HSV Repair

* Slight SCNR green

* AcrsinhStretch + HistogramTransformation to stretch nonlinear

**Nonlinear:**

* added stretch luminance to stretched RGB via LRGBCombination

* DeepSNR

* shitloads of CurveTransformations to adjust hue, lightness, saturation, etc. (some with star masks)

* DynamicCrop again

* annotation

Sessions

Date L R G B
2022-11-03 1.82 0.75 0.75 0.75
2022-11-08 0.12 0.05 0.05 0.03
Total 1.94 0.8 0.8 0.78

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